Insole-fitting machine.



A. E. JOHNSON.

INSOL'E FITTING MACHINE APPLICATION FAILED MAR. I6, 1916.

Patented Feb. 27, 1917.

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ALBERT E. JOHNSON, 0F BEVERLY, MASSACHUSETTS, ASSIGNO R TO UNITED SHOEMACHINERY COMPANY, OF ?ATERSON, NEIV JERSEY, A CORYOBATION OF NEWJERSEY.

INSQLE-FITTING MACHI-1\TE.-

To all whom it may concern:

Be it known that I, ALBERT E. Jorrnson, a citizen of. the United States,residing at Beverly, in the county of Essex and State of Massachusetts,have invented certain new and useful Improvements in Insole-FittingMachines; and I do hereby declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same.

This invention relates to insole fitting machines, and more particularlyto ma chines for fitting solid insoles for the lasting and inseamstitching operations.

The usual type of welt insole has formed on its marginal edge, a lip anda channel and a between-substance between the lip and the channel. up orremoved to form a shoulder into which to draw the upper and welt by theinseam. The shoulder on the insole determines the outline of the base ofthe upper, so that it is necessary that the upper be tightly drawn intothe shoulder to, give the properv appearance to a shoe. The proper depthof shoulder for supporting the upper varies for different per stock, butfor regular work the depth of the shoulder is about of an inch. If theshoulder is not of suiii cient depth to give a good backing for theinseam stitching operation, the upper will often not be drawn down intothe shoulder and when the welt is beaten out, the inseam will be visibleand the outline of the base of the the lip-setting roll having a upperwill be irregular.

In .the manufacture of high grade welt shoes it is necessary to use athin, insole, so that, when a comparatively heavy outsole is attached tothe insole, bottom will be flexible and yielding. average thickness Thethe lip depth of the regular shoulder, because to do so would leavea'very flimsy, thin feather and a weak sole edge. Also,ifthe inseam wereplaced in the between-substance of a thin insole having such a deepshoulder cut,

the inseam would form a ridge on the face 1 the of the insole, which isnot desirable on 7 inside of a shoe. To avoid this difiiculty,

the lip is cut with a thickness about one-half Specification of LettersPatent.

Application filed March 16, 1916.

The lip is generally turned.

kinds of insoles and up-' flexible the shoe of solid insoles is about ofan inch, so that, in, channelingthe insole, is not cut with a thicknessof the v Patented Feb. 27, 1917.

Serial No. 84,564.

of the depth of a regular, shoulder and then turned up to form ashoulder into which to draw the upper, This, however, leaves a veryshallow between-substance for supportingthe inseam, and thebetween-substance has to be made wide to give sutlicient support to theinseam, With a wide between-substance, it is diflicult to get the uppertightly fastened'in the shoulder, because the shoe is tipped on the.channel guide of an inseam sewing machine and the needle does notproperly pierce the between-substance. Further, the inseam is positionedwith a curved needle which penetrates deeply into a widebetween-substance and lays the thread on a curve. When the welt isbeaten out for attachment of the outsole, there is a tendency tostraighten the inseam threads and .loosen the attachment of the upper inthe shoulder. Also, the deeper thethread is placed in the insole, themore is the tendency to form a ridge; on the upper surface of the insolewith the inseam.

The primary object of the present invention is to provide a machine forfitting insoles by which; a comparatively thin insole will be providedwith; a substantial shoulder and a narrow between-substance, withoutmaking the lip and channel cuts so deep that a ridge will be formed onthe surface of the insole by the inseam.

In accordance with this object, one feature ofthe invention contemplatesthe provision in a sole-fitting machine, of a feathermolding roll andlip-setting and channel fiap'turning rolls opposite the molding. roll,

face for compressing the lip agalnst. the between-substance to build upa substantial shoulder. With the lip compressed against the between-substance, the between-substance will be reinforced for supportingthe inseam, and the lip onthe between-substance will add sufficientstrength sothat the inseam will not be torn out of the between-substancewhen the welt is beaten, preparatory to attaching the outsole. With thelip to reinforce the between-substance, the .between-substance, can bemade comparatively narrow and still give suliicient sup- )ort to theinseam.

The insole is attached to the bottom of a last during the manufacture ofthe shoe and r the outline of the sole and the bottom of the to theshape of molding roll for has a convex molding face last approximatelycoincide. The insole should conform closely to the bottom of the last,which often has a distinct transverse curvature. The feather of a thininsole is not very rigid and if it does not hug tightly to the bottom ofthe last, it often happens that it will be folded up against the lip bythe upper as it is lasted in. l Vhile in this position the inseam willpass through the feather and upper and make a defective shoe. Many shoeshave a stiff box toe, which is placed under the upper to give a definiteshape to the toe of a shoe. The box toe has a hardening compositionwhich is rendered flexible during the lasting operation to allow it tobe conformed to the shape of the last. The tee portion of the upper andthe box toe are drawn in by a series of wipers and if the feather of theinsole does not hug tightly to the bottom of the last the wipers willengage the feather and buckle the insole. 'The box toe will harden andwill be attached, along with the upper, to the buckled insole so thatwhen the shoe is removed from the last the insole will retain itsbuckled shape.

Another object of the invention is to pro fitting insoles to conformvide a machine for the last in such a' manner that they. will not bedisfigured when. the upper is lasted in.

With this object in view, another feature of the invention contemplatesthe provision in an insole fitting machine, of a featherengaging thefeather of an insole, lip-setting and channel flap-turning rollsopposite the molding roll, and means to compress the feather,between-substance, and lip between the feather-molding and thelip-setting roll to offset the sole and dish the bottom of the insole. 7

Other features of the invention consist in certain constructions andcombinations of parts for guiding and supporting the insole during themolding operation which are hereinafter described and set forth in theclaims. The various features of the invention are illustrated in theaccompanying drawings, in which Figure 1 is a view in side elevationshowing the head of an insole fitting machine embodying the preferredform of the invention; Fig. 2 is a front elevation of the machine shownin Fig. 1.; Fig. 3 is a detail view showing the insole fitting rolls inthe position in which they operate upon an insole; and Fig. 4 is avertical sectional view of a welt shoe showing a section of insolefitted by the machine. V V

In the illustrated embodiment of the invention a channeled insole ismolded and compressed between a feather-molding roll 10, a lip-settingroll 12 and a channel flapturning roll 14. The feather-molding roll andis mounted the improved to freely rotate upon a pin 16 which isadjustable in a socket 18 in the upper end of a pressing arm 20 which ispivotally mount ed in the head of the machine frame 22. The arm 20 isfixed on a shaft 24 which is rotatably mounted in a bearing 26 formed onthe front of the machine head 22. The arm 20 is normally pressed againstthe machine head by a strong torsioned spring 28 which is connected by alink 30 with the arm 20. The spring 28 is attached to a plate 29 mountedon a boss 32 formed on the front of the machine head. To prevent themolding roll 10 from coming into contact with the lip-setting roll a setscrew 3% is mounted in the arm 20 and arranged to contact with the boss32'.

The lip-setting roll 12 consists of a feather-feeding face 36, ashoulder-formi11g face 38, and a lip-setting face 40. Thefeather-feeding face 36 consists of a series of feeding teeth whichengage the feather fl, of the insole, to feed the insole through themachine. The feeding teeth are forn'ied upon a plate 42 which has a stemif threaded into the end. of the lip-setting roll. The face 38 forms theshoulder 48 of the insole, and is arranged in a plane substantiallynormal to the plane of the sole oppo site the between-substance while itis supported in the rolls; This shoulder-forming face with thelip-setting face 40. cooperates in setting the lip 50 back upon thebetween substance 52. The lip-setting face is arranged in a planesubstantially parallel to the plane of the face of the sole opposite thebetween-substance While it is supported in the rolls. The lip-settingroll is threaded upon the forward end of a driving shaft 54 which isjournaled in' the machine head. A driving pulley 56 is mounted on theshaft 5% and is arranged to be'connected with the driving power by abelt 58 to'positively drive the lip-setting roll.

The channel fiap-turning roll ll has a face 60 which rides in the bottomof the channel ofthe insole and turns the channel flap 62 back to.prepare it for the inseam stitching operation. The channel flap-turn ingroll is formed on a shank 64 which threaded upon the end of a floatingshaft (36. The shaft 66 is positively driven from the shaft Set by apair of internieshing gears 8, one of which is fixed on each of theshafts. The floating shaft is journaled in a frame 70, the rear end ofwhich swings on a pivot 72 and the forward end projects through a slot74 in the front of the machine head. The channel flap-turning roll ls:normally pressed toward the lip setting roll by means of a spring 76which is mounted ina socket 78 of the machine head and compressedbetween an adjusting screw 80 and the top of the frame70.

WVith the construction described above,

the lip-setting and channel flap-turning rolls will be positively drivento feed the insole. lVhilethe insole is advancing through the rolls, thelip 50 will be turned back upon the between-substance, and the channelflap 62 raised up from the body of the insole. The spring 76 willcompress the between-substance between the face 60 on the channelflap-turning roll and the face 38 on the lip-setting roll. -The spring28 will compress the feather f1, between-substance lip 50, and thebottom of the channel between the feather-molding roll 10 and thechannel flap-turning roll 14% and the faces 36, 3S and 40 on thelip-setting roll. The compression of the spring 28 in cooperation withthe molding faces of the rolls will offset the sole edge to conform itto the shape of the feather-molding roll, and thus dish the bottom ofthe insole.

The springs 28 and 76 normally hold the feather-molding and channelflap-turning rolls pressed toward the lip-setting roll, and, in order tofacilitate the insertion of an insole between the rolls, thefeather-molding and channel flap-turning rolls are arranged to move awayfrom the lip-setting roll. To retract the feather-molding roll, an arm82 is fixed on the shaft 24, Fig. 1, and moves with the pressing arm 20.The arm 82 is provided with a yoke 8% which embraces a block 80 pivotedon the end of a lever 88 which is mounted on a shaft 90. The lever 88 isconnected by means of a rod 92 with a foot treadle by which the roll maybe manually operated. To move the channelturning roll away from thelip-setting roll, an arm 94 is fixed on the shaft 90 and engages a boss96 secured to the swinging frame 70. By this arrangement, a movement ofthe lever 88 by the treadle connected with the rod 92 will swing theframe 7 0 about its axis 72 and lift the roll 14: away from thelip-setting roll and at the same time the feather-molding roll will bemoved away from the lip-setting roll by its connections with the lever88.

To assist the operator in guiding and handling an insole while it isbeing molded, a series of gages are provided to support the insole closeto its point of operation. lip-opening plow 98 is mounted directly infront of thelip-setting roll upon a bracket 100 which is attached to themachine head by set screw 102. The lip-opening plow has a face whichbears against the feather and a face which turns the lip to a positionso that the faces 26 and 28 of the lip-setting roll can mold the lipback to form the.

shoulder. A channel-opening plow 10-i is mounted directly in front ofthe channel flap-turning roll 14 upon a bracket 100 which projectsforward from the machine head (see Fig. 2.) The channel-opening plowlifts the channel flap 62 up so that the channel flap-turning face ('30may ride in the bottom of the channel and turn the flap back. A featherguide 108 is mounted upon a bracket 110 formed on the pressing arm 20.The feather guide is positioned directly in front of the feather-moldingroll and cooperates with the plows 98 and 10% to properly guide the solebetween the rolls. I. sole edge guide 112 is secured to the machine headby the screw 102 and extends over to the side of the lipsetti'ng plow.The guide 112 has a sole-engaging face 11%, Fig. 2, upon which the edgeof the sole rests while it is being fed through the machine. The gageyieldingly s pports the sole and acts to hold it against thechannel-turning roll so that, when the sole is being turned around thetoe, it will overcome the tendency for the toothed face36 to, work uponthe shoulder and lip of the insole. The guide 112 is not limited to usein an edge-molding machine,

but obviously may be embodied in many other types of sole-fittingmachines.

In Fig. 4: is illustrated a section of an insole molded in the improvedmachine and the relative position it occupies on the last while theupperis being lasted in and the inseam placed therein. Whenv the dishedinsole is attached to the bottom of the last, the lasting tacks willhold the central portion of the insole down in contact with the bottomof the last, and draw the edges of the feather down to tightly hug thebottom of'the last. By molding the sole edge, the edges of the featherin contact with the last will be slightly removed from the edge of thelast, and when the upper is drawn over the insole, it will contact onlythe upper edge of the insole. The feather is pressed against the bottomof the last at such an angle that it overcomes the tendency of the.v

upper, they will ride over the top of the feather and thereby alltendency to buckle the insole will be overcome. Having thus describedwhat is claimed as new is:

1. An insole-fitting machine having, in combination, a'gfeather-moldingroll, and lip-setting and channel flap turning rolls opposite themolding roll, the lip-setting roll having a feather feeding andcompressing face, and a'lip-setting face constructed and arranged toturn down upon and compress the lip against the between-substance.

2. An insole fitting machine having, in combination; a feather-moldingroll having a molding face to engage the unlipped side of an insoleopposite the feather to offset the edgeof the sole; a lip-setting rollopposite the feather-molding roll and having a feather engaging face, alip-setting face and my invention,

a shoulder forming face, a channel flap lifting roll opposite thefeather-molding roll having a face for turning back the channel flap;and means for pressing the feathermolding and channel flap lifting rollstoward the lip-setting roll; the faces of said lip-setting roll being soarranged with relation to the face of the feather-molding roll that thefeather, betweei'i-substance and lip of the sole will be compressedbetween them, and the faces of the lip-setting roll being so arrangedwith relation to the face of the channel flap lifting roll that thebetween substance will be compressed between them.

3. An insole-fitting machine having, in combination, a feather-moldingroll, lip-setting and channel flap turning rolls opposite the moldingroll, a channel opening plow in front of the channel flap turning roll,a feather guide in front of the lip-setting roll, and a sole edgeengaging guide in front of the molding roll.

4:, An insolefitting machine having, in combination a feather-moldingroll lip-setting and channel flap turning rolls opposite the moldingroll, and a sole edge guide for maintaining the sole against thepressure of the channel flap turning roll to keep the 7 Copies of thispatent may be obtained for five cents each,

channel flap turning roll in the bottom of the channel of the insole.

5. An insole fitting machine having, in combination; a feather-moldingroll having a convex surface for engaging the unlipped surface of aninsole a channel flap lifting roll opposite the feather-molding roll andhaving a face to ride in the channel and turn back the channel flap; alip-settingroll opposite the feather-molding r011 having a feeding facefor engaging the feather a shoulder forming face arranged substantiallynormal to the surface of the sole opp'osite the between-substance whileit is supported in the rolls, and a lip-setting face arran edsubstantiall' )arallel with said sole surface; and means for pressingthe feather-molding and channel flap lifting rolls toward thelip-setting roll.

6. A sole fitting machine having, in combination, means for supportingand feeding a lipped sole including a roll having a toothed face forengaging the feather, and means for supporting and guiding the'edge ofthe sole to prevent the toothed roll from working up on the shoulder andlip.

ALBERT Joi-iNsoN.

Washington, D. C.

